Climate and monthly weather forecast
Yantai, China

Located in China, Yantai experiences a humid subtropical climate, typically defined by Köppen climate classification as Cwa. This signifies moderately wet summers and comparatively dry winters. Monthly average sea temperatures fluctuate notably throughout the year, from as low as 3.2°C (37.8°F) in February to as high as 23.8°C (74.8°F) in August. The daylight hours also vary, with minimum of 9.6 hours in December to a high of 14.7 hours in June.

Yantai's climate veers between two extremes. The winter months are characterized by significantly lower temperatures whilst the summer months are usually warmer with copious rainfall. The sharp incline in sea temperatures from 3.8°C (38.8°F) in March to 22.7°C (72.9°F) in July aligns with the summer months, indicating a potentially high heat index. Accompanying this, the daylight hours extend from 12 hours in March, reaching a maximum of 14.7 hours in June, before a gradual decline is witnessed.

The uniqueness of Yantai's climate is the sharp variation between the coldest and hottest months which also correspond to the sea temperature fluctuation. The dry winter and wet summer are also common, but the severity of this transition can vary year upon year.

Determined by a mix of desirable weather conditions, May to September is deemed as the best period to visit Yantai. During these months, the sea temperature ranges from 12.4°C (54.3°F) to 22.5°C (72.5°F), apt for beach going and water-related activities. Coupled with longer daylight hours averaging between 14.2 hours and 14.5 hours, these conditions enhance outdoor activities, sightseeing, and exploring this coastal city.

The period between January and March is considered unfavorable for visiting Yantai. The sea temperatures during these months are relatively low, ranging from 3.2°C (37.8°F) to 3.8°C (38.8°F). The shortage of daylight, with an average of 9.9 hours to 12 hours, limits the scope for outdoor activities and exploration. Despite its cultural richness and historical significance, the harsh winter weather could make sightseeing less enjoyable.

Spring in Yantai is a transitional season where temperatures begin to increase and day length extends. In this period, which spans from March to May, sea temperatures rise from 3.8°C (38.8°F) to 12.4°C (54.3°F), and daylight varies from 12 hours to 14.2 hours. It is best to pack versatile clothing due to the fluctuating weather during these months.

Summer in Yantai, marked from June to August, brings the warmest months of the year. Sea temperatures rise up to 23.8°C (74.8°F) and daylight hovers from 14.2 hours to 14.5 hours. This period presents visitors with ample time and favourable conditions to appreciate the outdoors, especially the city's stunning coastline.

The autumn season, stretching from September to November, sees a gradual cooling of temperatures from the hot summer months. Sea temperatures decline from 22.5°C (72.5°F) to 13.6°C (56.5°F), paralleled by a reduction in daylight from 14.5 hours to 10.2 hours. Despite cooler temperatures, autumn's scenic beauty and lesser crowds make it an appealing time for sightseers.

Winter in Yantai, spanning from December to February, is marked by low sea temperatures ranging from 8.6°C (47.5°F) to 3.2°C (37.8°F) and reduced daylight hours ranging from 9.6 hours to 10.8 hours. This period is colder and drier, making it less ideal for travel planning. However, for those who enjoy frosty conditions and can brave the chill, the winter landscape offers its own charm and tranquil beauty.

Amid Yantai's peak winter season, January delivers the city's chilliest temperatures. The sea reflects this cold snap, hosting a shivery average water temperature of 3.2°C (37.8°F). A coat becomes an essential accessory as weather shifts considerably towards harsher conditions compared to December. Weather in January »

February carries forward January's winter influence, but with subtle hints of change. Although the sea retains its shivery temperatures from 3.2°C (37.8°F) in January to 4.8°C (40.6°F), an increase in daylight, from 9.9 hours to 10.8 hours, hints at the approaching end of winter. Weather in February »

March announces the onset of spring with subtle temperature changes. The sea starts to thaw, averaging at 7.6°C (45.7°F), an appreciable increase from February's frigid temperatures. Days grow longer as daylight extends, foreshadowing warmer weather on the horizon. Weather in March »

April serves as a transition toward Yantai's warmer months. A significant rise in sea temperature, reaching an average of 12.4°C (54.3°F), brings forth the beginning of bathing season. Equipped with an extended sunlight period, days become livelier. Weather in April »

May brings about noticeable changes, shifting towards the much-awaited summer season. Sunny days progressively become more prolonged as the month unfolds. While the sea becomes increasingly welcoming, it doesn't reach peak comfortability until the summer months. Weather in May »

In June, Yantai begins to sizzle as summer sets in firmly. The sea grows warmer, hitting the highest value so far in the year at 18.7°C (65.7°F). Daylight prolongs to almost 15 hours, offering the ideal setting for outdoor activities. Weather in June »

July sees Yantai at its warmest, characterized by prolonged daylight and inviting sea temperatures. The sea reaches an impressive 22.7°C (72.9°F), the highest of the entire year. Despite the fierce heat, outdoor activities prosper due to longer daylight hours. Weather in July »

August maintains July's toastiness, marking a prolonged period of summer warmth. With sea temperatures hitting 23.8°C (74.8°F), the highest average for the year, it is the ideal month for beach activities. Despite the scorching weather, Yantai ensures an ample supply of daylight and warm waters. Weather in August »

September begins with a subtle hint of change, a transition towards milder weather leading into autumn. Although the sea remains warm with a temperature of 22.5°C (72.5°F), a slight drop is noticeable from the preceding summer months. Weather in September »

October sees Yantai entering its autumn stride with a gradual decline in temperatures. The transition away from September's warmth is noticeable, replaced by the serene charm of fall. While the sea retains some of its warmth from summer, it begins to surrender to the changing season. Weather in October »

In November, the average sea temperature in Yantai, China, is 13.6°C (56.5°F). Note: Caution: 13.6°C (56.5°F) temperatures below 10°C (50°F) during swimming can result in intense cold shock and quickened breathing. Weather in November »

December brings Yantai full circle, rounding off the year with the onset of winter. As sea temperatures sink to an average of 8.6°C (47.5°F), the chilling weather can be felt all around. The decrease in daylight hours contributes to cooler days, effectively ending the bathing season. Weather in December »